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Property, Plant & Equipment
3 Months Ended
Mar. 31, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant & Equipment
PROPERTY, PLANT & EQUIPMENT
The following table summarizes our property, plant and equipment as of March 31, 2015 and December 31, 2014:
Millions of dollars
 
March 31,
2015
 
December 31,
2014
Land
 
$
131

 
$
142

Buildings
 
1,558

 
1,616

Machinery and equipment
 
7,891

 
8,182

Accumulated depreciation
 
(5,801
)
 
(5,959
)
Property, plant and equipment, net
 
$
3,779

 
$
3,981


During the three months ended March 31, 2015, we disposed of $14 million of buildings, machinery and equipment.